Maharashtra Board Solutions for Exercise 2: Practice Set 10

Which number is neither a prime number nor a composite number?

Check whether the given pair of numbers are coprime or not?

$4,5$

Check whether the given pair of numbers are coprime or not?

$17,19$

Check whether the given pair of numbers are coprime or not?

$27,15$

List the prime numbers from $25$ to $100$ and say how many they are.

Write all the twin prime numbers from $51$ to $100$.

Write $5$ pairs of twin prime numbers from $1$ to $50$.

Which are the even prime numbers ?